The shake blends prosecco with strawberry frozen custard and is topped with whipped cream, rainbow sprinkels, and respberry dust.

The shakes are available from September 18 to October 1 at two New York and Los Angeles locations.

$2 from each shake sold will go towards the GLAAD organization, which advocates for the LGBTQ community.

For two weeks only, you can get a boozy "Jack & Karen" milkshake at Shake Shack, named after the quirky characters in NBC's recently revived show "Will & Grace"(which has already been picked up for asecond season, nbd).

This is the first timeShake Shackhas made analcohol-infused shake, and we love that it's made with sparkling wine – the shake blendsproseccowith strawberry frozen custard and is topped with whipped cream, rainbow sprinkles, and raspberry dust.

There's also a "Will & Grace" shake, naturally, and it sounds just as good (though there's no alcohol involved, womp). This one has blends cinnamon marshmallow frozen custard with Shack fudge and id topped with whipped cream and cinnamon sugar.

The shakes are available from September 18 to October 1, overlapping with the show's return to Thursdays on the 28th. They'll be sold at two New York locations – Herald Square and the Upper West Side – and two Los Angeles locations. If you head to the UWS, you'll be blocks from Will and Grace'sTV apartment!

Shake Shack is partnering withGLAADon the limited-edition menu items, and will donate $2 for each shake sold to the organization, which advocates for the LGBTQ community. Shakes will be sold for $5.99.